Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4796141 | Disc assembly for a magnetic disc apparatus | — | 1989-01-03 |
HT
Hideo Tsumura
Overall (1989): #103,777 of 140,708Top 75%
1
Patents 1989